Tag: M.W:200-300

Safety of 1-Bromoundecane. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Synthesis and Physical Properties of Tunable Aryl Alkyl Ionic Liquids (TAAILs). Author is Lerch, Swantje; Strassner, Thomas.

A series of tunable aryl alkyl ionic liquids I [R = 2-Me, 4-Br, 2,4-di-Me, etc.; n = 4,5,6,7,8,9,10,11,12] with different properties due to the electron-donating or -withdrawing effect of the substituents at the aryl ring was developed. Herein, a wide variety of those ionic liquids (ILs) was presented in terms of their cation structure. The synthesized ILs containing the bromide or bis(trifluoromethane)sulfonimide anion and 1-aryl-3-alkyl imidazolium cations with various substituents in the ortho and/ or para position of the Ph ring and alkyl chains of different lengths varying from Bu to dodecyl. The differences of their phys. properties (m.p., thermal decomposition, viscosity, electro-chem. window) of these ILs were reported according to their structure.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Formula: C11H23Br. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Liquid crystal and photoluminescent properties of a series of symmetrical 1,2-bis(4-alkoxybenzylidene)hydrazines bearing long-tails of hydrocarbon chain. Author is Al-Karawi, Ahmed Jasim M.; OmarAli, Al-Ameen Bariz; Awad, Adil A.; Doungmo, Giscard; Terraschke, Huayna.

In this work, 1,2-bis[4-(n-alkoxy)benzylidene]hydrazine (n-alkoxy: O(CH2)nH, n = 11-18 or 20), a sym. series of azines (linear compounds with rod-like shape structure), were synthesized using a very simple two-step procedure as a part of our continuing effort in evaluating hydrophobic 1,2-disubstituted hydrazine compounds as photoluminescent liquid crystalline materials. The first step of the synthesis involved the alkylation of the OH group of 4-hydroxybenzaldehyde in basic medium using the Williamson method to obtain 4-alkoxybenzaldehydes. While the second step included the condensation reaction of hydrazine hydrate and appropriately 4-alkoxybenzaldehydes compounds (mole ratio 1:2, resp.) in acidic medium under ambient conditions. The prepared compounds were characterised and their structures elucidated depending upon IR (IR), UV-visible (UV-Vis), NMR (1HNMR, 13CNMR, DEPT NMR, 2D 1H-1H-COSY and 2D 1H-13C- HSQC) and elemental anal. (CHN). Liquid crystalline behavior and photoluminescent properties were studied using polarised light optical microscopy (POM), fluorescence emissions (FE), differential scanning calorimetry (DSC) and X-ray powder diffraction (XRD) techniques. The studies showed that all of these compounds were enantiotropic liquid crystalline materials exhibiting smectic (SmA and SmC) and nematic (droplet and thread) mesophases . The study also displayed that all of the prepared compounds were photoluminescent in the crystalline and liquid crystal states.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 1-Bromoundecane( cas:693-67-4 ) is researched.Recommanded Product: 1-Bromoundecane.Nayak, Rashmi Ashwathama; Veerabhadraswamy, Bhyranalyar Nagarajappa; Shankar Rao, Doddamane S.; Sudhakar, Achalkumar Ammathnadu; Yelamaggad, Channabasaveshwar V. published the article 《Room-Temperature, Deep-Red/NIR-Emissive, C3-Symmetric (n,π-conjugated) Columnar Liquid Crystals: C3h-Tris(keto-hydrazone)s》 about this compound( cas:693-67-4 ) in ACS Omega. Keywords: photoluminescent columnar discotic liquid crystal. Let’s learn more about this compound (cas:693-67-4).

The first examples of deep-red/near-IR (NIR) photoluminescent, (n,π-conjugated) discotics, namely, C3h-tris(keto-hydrazone)s, which are the tautomers of tris(azo-enol)s, have been synthesized via a facile one-step triple azo-coupling and characterized. The n,π-resonance-assisted intramol. H-bonding, rendering planarity and shape persistence to the central core, facilitates their self-assembly into either a hexagonal columnar (Colh) phase (p6mm lattice) or a columnar rectangular (Colr) phase (p2mm lattice), over an extended thermal range including room temperature, fluorescing in the deep-red/NIR-I region. The low band gap with deep-red/NIR emission makes them ideal candidates for NIR-organic light-emitting diodes (OLEDs) and bioimaging.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Antiferroptotic Activity of Phenothiazine Analogues: A Novel Therapeutic Strategy for Oxidative Stress Related Disease, published in 2020-11-12, which mentions a compound: 693-67-4, Name is 1-Bromoundecane, Molecular C11H23Br, COA of Formula: C11H23Br.

The synthesis of series of lipophilic phenothiazine analogs I (n = 4, 5, 6, 8) that potently inhibit ferroptosis was reported in the present study. The most promising compounds I exhibited an improved protection compared to the parent phenothiazine against erastin- and RSL3-induced ferroptotic cell death. These analogs have equivalent or better potency than ferrostatin-1 (Fer-1) and liproxstatin-1 (Lip-1), which are among the most potent inhibitors of this regulated cell death described so far. They represent novel lead compounds with therapeutic potential in relevant ferroptosis-driven disease models such as FRDA.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Electric Literature of C11H23Br. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Synthesis and Microbiological Properties of Novel Bis-Quaternary Ammonium Compounds Based on Biphenyl Spacer. Author is Vereshchagin, Anatoly N.; Gordeeva, Alexandra M.; Frolov, Nikita A.; Proshin, Pavel I.; Hansford, Karl A.; Egorov, Mikhail P..

Novel gemini (tail-head-spacer-head-tail) bis-quaternary ammonium compounds (bis-QACs) I (Hal = Cl, Br, I; n = 7, 8, 9, etc.) with a biphenyl spacer between two pyridinium heads were synthesized and compared with commonly used antiseptics such as benzalkonium chloride (BAC) and chlorhexidine digluconate (CHG). The series of compounds showed high inhibitory activity against five bacterial strains and two fungi. The compounds, which contain C8H17-C10H21 aliphatic tails were best within the series. A counterion change does not affect MIC in general. Cytotoxicity on human embryonic kidney cells and haemolysis were also investigated. Among the bis-QACs, cytotoxic effect was lower for I (Hal = Br; n = 12), which is the closest structural analog of BAC.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

SDS of cas: 693-67-4. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Efficient Polysulfide-Based Nanotheranostics for Triple-Negative Breast Cancer: Ratiometric Photoacoustics Monitored Tumor Microenvironment-Initiated H2S Therapy. Author is Li, Jie; Li, Xiang; Yuan, Yan; Wang, Qi; Xie, Lisi; Dai, Yunlu; Wang, Wenjun; Li, Lin; Lu, Xiaomei; Fan, Quli; Huang, Wei.

The incidence of triple-neg. breast cancer (TNBC) is difficult to predict, and TNBC has a high mortality rate among women worldwide. A theranostics approach is developed for TNBC with ratiometric photoacoustic monitored thiol-initiated hydrogen sulfide (H2S) therapy. The ratiometric photoacoustic (PA) probe (CY) with a thiol-initiated H2S donor (PSD) to form a nanosystem (CY-PSD nanoparticles) is integrated. In this theranostics approach, H2S generated from PSD is sensed by CY based on ratiometric PA signals, which simultaneously pinpoints the tumor region. Addnl., H2S is cytotoxic toward TNBC cells (MDA-MB 231), showing a tumor inhibition rate of 63%. To further verify its pharmacol. mechanism, proteomics anal. was performed on tumors treated with CY-PSD nanoparticles. Cells are killed by the significant mitochondrial dysfunction via suppressed energy supply and apoptosis initiation. Besides, the observed inhibition of oxidative stress also generates the cytotoxicity. Significant Kyoto Encyclopedia of Genes Genomes pathways related to TNBC are inhibited. This H2S theranostics approach updates the current anticancer therapies which brings promise for women suffering malignant breast cancer.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 693-67-4, is researched, SMILESS is CCCCCCCCCCCBr, Molecular C11H23BrJournal, Article, Chemistry – A European Journal called Catalytic Asymmetric Fluorination of Copper Carbene Complexes: Preparative Advances and a Mechanistic Rationale, Author is Buchsteiner, Michael; Martinez-Rodriguez, Luis; Jerabek, Paul; Pozo, Iago; Patzer, Michael; Noethling, Nils; Lehmann, Christian W.; Fuerstner, Alois, the main research direction is copper carbene complex catalyst asym fluorination alpha diazoester; asymmetric catalysis; bisoxazoline ligands; carbene complexes; copper; organofluorine compounds.COA of Formula: C11H23Br.

The Cu-catalyzed reaction of substituted α-diazoesters with fluoride gives α-fluoroesters with ee values of up to 95%, provided that chiral indane-derived bis(oxazoline) ligands were used that carry bulky benzyl substituents at the bridge and moderately bulky iso-Pr groups on their core. The apparently homogeneous solution of CsF in C6F6/hexafluoroisopropanol (HFIP) is the best reaction medium, but CsF in the biphasic mixture CH2Cl2/HFIP also provides good results. DFT studies suggest that fluoride initially attacks the Cu- rather than the C-atom of the transient donor/acceptor carbene intermediate. This unusual step is followed by 1,2-fluoride shift; for this migratory insertion to occur, the carbene must rotate about the Cu-C bond to ensure orbital overlap. The directionality of this rotatory movement within the C2-sym. binding site determines the sense of induction. This model is in excellent accord with the absolute configuration of the resulting product as determined by x-ray diffraction using single crystals of this a priori wax-like material grown by capillary crystallization

Here is a brief introduction to this compound(693-67-4)COA of Formula: C11H23Br, if you want to know about other compounds related to this compound(693-67-4), you can read my other articles.

Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 693-67-4, is researched, SMILESS is CCCCCCCCCCCBr, Molecular C11H23BrJournal, Article, Research Support, Non-U.S. Gov’t, Small called Efficient Polysulfide-Based Nanotheranostics for Triple-Negative Breast Cancer: Ratiometric Photoacoustics Monitored Tumor Microenvironment-Initiated H2S Therapy, Author is Li, Jie; Li, Xiang; Yuan, Yan; Wang, Qi; Xie, Lisi; Dai, Yunlu; Wang, Wenjun; Li, Lin; Lu, Xiaomei; Fan, Quli; Huang, Wei, the main research direction is polysulfide nanotheranostic breast cancer photoacoustic tumor microenvironment hydrogen sulfide; hydrogen sulfide; polysulfide; ratiometric photoacoustics; theranostics; triple-negative breast cancer.Electric Literature of C11H23Br.

The incidence of triple-neg. breast cancer (TNBC) is difficult to predict, and TNBC has a high mortality rate among women worldwide. A theranostics approach is developed for TNBC with ratiometric photoacoustic monitored thiol-initiated hydrogen sulfide (H2S) therapy. The ratiometric photoacoustic (PA) probe (CY) with a thiol-initiated H2S donor (PSD) to form a nanosystem (CY-PSD nanoparticles) is integrated. In this theranostics approach, H2S generated from PSD is sensed by CY based on ratiometric PA signals, which simultaneously pinpoints the tumor region. Addnl., H2S is cytotoxic toward TNBC cells (MDA-MB 231), showing a tumor inhibition rate of 63%. To further verify its pharmacol. mechanism, proteomics anal. was performed on tumors treated with CY-PSD nanoparticles. Cells are killed by the significant mitochondrial dysfunction via suppressed energy supply and apoptosis initiation. Besides, the observed inhibition of oxidative stress also generates the cytotoxicity. Significant Kyoto Encyclopedia of Genes Genomes pathways related to TNBC are inhibited. This H2S theranostics approach updates the current anticancer therapies which brings promise for women suffering malignant breast cancer.

Here is a brief introduction to this compound(693-67-4)Electric Literature of C11H23Br, if you want to know about other compounds related to this compound(693-67-4), you can read my other articles.

Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《α-Hydroxy-Tetrazoles as Latent Ethynyl Moieties: A Mechanistic Investigation》. Authors are Quinodoz, Pierre; Wright, Karen; Drouillat, Bruno; Kletskii, Mikhail E.; Burov, Oleg N.; Lisovin, Anton. V.; Couty, Francois.The article about the compound:4-Chloro-4′-ethynyl-1,1′-biphenylcas:57399-11-8,SMILESS:C#CC1=CC=C(C2=CC=C(Cl)C=C2)C=C1).Application In Synthesis of 4-Chloro-4′-ethynyl-1,1′-biphenyl. Through the article, more information about this compound (cas:57399-11-8) is conveyed.

This article focuses on the dehydration of α-hydroxy-tetrazoles, leading to tetraazafulvenes and then to vinylic carbenes that rearrange into ethynyl moieties through the Fritsch-Buttenberg-Wiechell rearrangement. Each step of this sequence was scrutinized, either by examination of the substrate and/or dehydrating agent scope, or through AM1 calculations, to understand the limiting step of this process. This underrated transformation appears to be a viable alternative to existing methods used for transforming aldehydes into alkynes.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Inhibition of bacterial growth and galactosyltransferase activity of WbwC by α, ω-bis(3-alkyl-1H-imidazolium)alkane salts: Effect of varying carbon content.Name: 1-Bromoundecane.

A series of compounds was designed and synthesized having two imidazolium rings separated by a polymethylene spacer and having alkyl substituents on each of the imidazolium rings. The compounds were assayed for their effects on the activity of galactosyltransferase WbwC, and also on the growth of Gram-neg. and Gram-pos. bacteria, as well as human cells. The inhibition observed on enzyme activities and cell growth was dependent on the total number of carbons in the spacer and the alkyl substituents on the imidazolium rings. These readily synthesized, achiral compounds have potential as antimicrobial and antiseptic agents.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem